Translatable Concern

translatable.rb

module Translatable
  extend ActiveSupport::Concern

  module InstanceMethods
    def method_missing(*args)
      method = /(\w+)(.)?/.match(args.first).to_a.last(2)
      method = "#{method.first}_#{args.second}#{method.second}"
      if respond_to?(method)
        send(method)
      else
        super
      end
    end
  end
end